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Round|Lab Grown|IGI

1.64ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG12279308

Shape and cutting style on the report: Round brilliant

Certificate IGI LG12279308

Diamond specifications and retailer prices

From $552 SGD
$432 USD
As of November 1, 2026
Save $3,462 SGD (86%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,014 SGD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.64ct lab-grown round diamond

This 1.64ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG12279308 or 12279308. Listed at 11 retailers as of October 31, 2026, with prices from $552 to $4,014, a $3,462 spread on the same certified stone. Do Amore Diamonds lists it at $4,014. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.64
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12279308
Dimensions7.59 × 7.61 × 4.64 mm
L/W Ratio1.00
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process.
Top View
7.59 mm7.61 mm1.64 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12279308
Side View
Table 59.5%Crown 35°Girdle: MediumPavilion 41°Culet: NoneDepth 61.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $4,014 SGD|Low: $552 SGD|High: $4,014 SGD|Avg: $1,440 SGD|+0.3%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 5$552 SGD
Retailer 8$692 SGD
Retailer 9$754 SGD
Retailer 11$969 SGD
Retailer 2$997 SGD
Retailer 3$1,085 SGD
Retailer 4$1,151 SGD
Retailer 7$1,641 SGD
Retailer 10$1,694 SGD
Retailer 6$2,417 SGD
Do Amore Diamonds$4,014 SGD

11 data points across 11 retailers

11 retailers$552 SGD to $4,014 SGD

B+
Cheapest Retailer
-
$552 SGD
$432 USD
A
Retailer 2
-
$692 SGD
$541 USD
View
A
Retailer 3
-
$754 SGD
$590 USD
View
A
Retailer 4
-
$969 SGD
$758 USD
View
A
Retailer 5
-
$997 SGD
£614 GBP
View
A
Retailer 6
-
$1,085 SGD
$849 USD
View
A
Retailer 7
-
$1,151 SGD
$900 USD
View
A
Retailer 8
-
$1,641 SGD
$1,284 USD
View
A
Retailer 9
-
$1,694 SGD
$1,325 USD
View
B+
Retailer 10
-
$2,417 SGD
£1,489 GBP
View
Most Expensive
B
Do Amore Diamonds
27-DBBFF0559 · Oct 31
$4,014 SGD
$3,140 USD
View
10 more retailers have this diamond
Prices start from $552 SGDSave up to $3,462 SGD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.64ct Round
$552 SGD